Sith-J-Cull had some amazing maps. I think three out of the five we used in our standard rotation on all three of our custom map servers were made by that dude.
My clan had five servers that we rented, three private, two public. The private ones were all with custom maps, one duel server (where we held meetings and official duels), one TFFA server (where we held TFFA matches with other clans) and one FFA server (where we went to mess around). We had two public servers, one TFFA with all five standard maps on rotation, and one duel server perpetually stuck on Tattooine.
Man, I love JA's Filefront page (JK3Files)... I had so much crap from there... a couple hundred custom maps, at least that many custom skins, a few character models, sound packs, custom lightsabers... that site had just about everything.